PNY XLR8 GeForce GTX 550 Ti 1024MB GDDR5 PCI-Express 2.0 DVI-I+DVI-I+HDMI mini Overclocked Graphics Card VCGGTX550TXPB-OC Chipset: GTX550 Ti Video Memory: 1GB DDR5 Video Memory: 1GB DDR5 Memory Clock: 4356 MHz Bus: PCI-Express 2.0 x16 Connectors: Dual DVI, Mini HDMI Support Microsoft Windows 7